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EP1910211B1 - Führungsvorrichtung für ineinander gleitende masten, teleskoparme und führungsverfahren - Google Patents

Führungsvorrichtung für ineinander gleitende masten, teleskoparme und führungsverfahren Download PDF

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Publication number
EP1910211B1
EP1910211B1 EP06755492A EP06755492A EP1910211B1 EP 1910211 B1 EP1910211 B1 EP 1910211B1 EP 06755492 A EP06755492 A EP 06755492A EP 06755492 A EP06755492 A EP 06755492A EP 1910211 B1 EP1910211 B1 EP 1910211B1
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EP
European Patent Office
Prior art keywords
mast
axis
roller
fixed
pad
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EP06755492A
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English (en)
French (fr)
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EP1910211A1 (de
Inventor
Alain Van Acker
Stéphane DAVID
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Fives ECL SAS
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ECL SAS
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/707—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic guiding devices for telescopic jibs

Definitions

  • the present invention relates to a device for guiding a mast capable of sliding axially in another mast, a telescopic arm comprising at least two masts and such a device, and a method of guiding two masts with respect to the other by means of such a device.
  • the invention applies in particular to the telescopic arms used in aluminum production plants.
  • Aluminum is produced industrially according to the Hall-Héroult process, in electrolysis cells of alumina dissolved in an electrolyte bath.
  • the operation of an electrolysis plant requires interventions on the electrolysis cells including, in particular, the replacement of spent anodes with new anodes, the removal of liquid metal from the cells and the removal or addition of electrolyte.
  • the factories are generally equipped with service machines comprising mobile bridges that can be translated over the electrolysis cells and on which service modules can be moved.
  • the service modules carry telescopic arms extending towards the cells, the arms being equipped, at their lower end, with various handling and intervention devices. These organs may be tools such as shovels, pliers, etc.
  • the telescopic arms comprise at least one mast fixed to the service module and a movable mast carrying the handling and intervention member, sliding axially in the first mast or around it. It is necessary to provide a guide of the masts relative to each other and a maintenance in the desired position, so that the handling member and intervention is positioned satisfactorily with respect to the electrolysis cell, depending on the intervention to be performed.
  • this guidance is obtained by rolling steel rollers or treated cast iron associated with one of the masts on welded steel rails or fixed by bolting or on the other mast mast. But, if the guiding efforts are relatively low in normal operation, much greater efforts may result from improper implementation of service machines. In order to resist these accidental forces, it is necessary to provide large rollers, and the rails must be made of a very strong steel to prevent damage by the rollers.
  • This first embodiment is reliable, but cumbersome and expensive.
  • this guidance is obtained by sliding skids rubbing material attached to one of the masts on welded steel rails or fixed by bolting or on the other mast mast.
  • the rails must be made of heavy duty steel to limit wear.
  • This second embodiment makes it possible to withstand significant efforts with a small footprint, thanks to the use of the pads.
  • the skates make it difficult to slide from one mast to the other, and they wear out quickly because of the aggressive and corrosive nature of the working environment, in particular due to the presence of alumina.
  • first and second embodiments mentioned above require the machining of long structures, which may exceed five meters. These structures are constituted either by the surface of the masts, which must form a satisfactory bearing surface for the rails, or by the rails themselves.
  • the present invention aims to overcome the disadvantages mentioned above.
  • the invention relates to a device for guiding a first mast having a first axis with respect to a second mast having a second axis, the second mast being intended to be mounted substantially coaxially in the first mast so as to slide in it, the guide device being intended to be fixed at one end of the first mast or the second mast, and to cooperate with a contact zone located on the outer face of the second mast or on the inner face of the first mast, respectively, and comprising at least one guide unit arranged to cooperate with a contact zone of the second mast or the first mast, respectively, the unit having a direction of thrust substantially orthogonal to the contact zone with which it is intended to cooperate.
  • the device allows a satisfactory guidance of the first mast relative to the second mast, both in normal operation when the efforts are weak, via the rollers, and in cases where exceptional efforts are exerted on the device.
  • the support is no longer provided by the rollers alone but also by the pads, which allows a significant tightening without the need to resort to large rollers, especially materials. resistant or heavy machining, and without causing deterioration of the mast area in contact with the roller.
  • the risk of deterioration being considerably reduced, the availability of the service module which carries the telescopic arms and its service life are increased.
  • front and rear are defined relative to the direction of thrust, the front term designating the direction directed towards the mast on which the roller and / or the skid is based, the rear term corresponding to the opposite direction.
  • the device comprises elastic return means capable of exerting a force substantially parallel to the thrust direction, said elastic return means being arranged so that, when the axis of the roller is in the first position, they may be compressed to allow movement of the roller axis to the second position. Pre-compression means may also be provided so that, when the axis of the roller is in the first position, the elastic return means are compressed and thus urge the axis of the roller forward. This results in better guidance of the mast.
  • the axis of the roller may be integral with a lever pivotally mounted about a fixed axis relative to the pad and substantially parallel to the axis of the roller.
  • a portion of the elastic return means bears on an area of the lever, the axis of the roller being located between the axis of pivoting of the lever and said zone of the lever.
  • said zone of the lever is located between the axis of pivoting of the lever and the axis of the roller.
  • the lever is formed of two substantially parallel flanges and orthogonal to the axis of the roller, the roller being disposed between the two flanges, and said flanges are on the one hand placed at one of their ends, on either side of a fixed support relative to the pad, and connected by a rod passing through the support, said rod forming pivot axis of the lever relative to said support, and secondly connected to the other of their ends, by a plate on which the elastic return means are in support.
  • the pad can be formed by the support, or be distinct from the support.
  • the locking means may comprise a threaded rod disposed inside the spring, substantially coaxially with it, said threaded rod having a first end portion cooperating with a threaded hole formed in the wall on which the first end of the spring is in position.
  • support and a second end portion attached to a transverse blocking element, and the support piece may have a through hole in order to be engaged around the threaded rod and to be in abutment against the element transverse blocking, under the action of the spring, when the axis of the roller is in the first position.
  • These means may further comprise a hollow cylindrical piece forming a spacer, mounted coaxially around the threaded rod, inside the spring, between the wall on which the first end of the spring bears and the transverse locking element.
  • the device is intended to be attached to one end of the first mast and to cooperate with a contact zone situated on the outer face of the second mast, said device comprising a housing intended to receive the second mast, and a number N1 of guide units, N1 being preferably between 1 and 20 inclusive, typically between 2 and 12 inclusive, said units being arranged substantially on the faces of a fictitious polygon near the corners thereof, the bearing faces of the pads of said units being directed towards the housing.
  • This device may comprise a housing in which are placed the guide units, and in which is formed the housing, the housing being made of at least two parts to be assembled to one another around the second mast.
  • means for adjusting the spacing between the parts of the housing may be provided in order to adjust the transverse dimensions of the housing according to the transverse dimensions of the second mast.
  • the device is intended to be attached to one end of the second mast and to cooperate with a contact zone located on the inner face of the first mast, said device having an outer shape adapted to the inner shape of the first mast and comprising a number N2 of guide units, N2 preferably being between 1 and 20 included, typically between 2 and 12 inclusive, said units being disposed substantially on the faces of a fictitious polygon near the corners thereof, the bearing faces of the pads of said units being directed towards the outside of the device.
  • This device comprises a frame on which are placed the guide units.
  • Said frame may comprise at least a first and a second floor, each floor comprising at least two units whose bearing faces of the pads are directed away from each other, the thrust direction of the units of the first stage being preferably orthogonal to the thrust direction of the units of the second stage.
  • the two masts may be cylinders of revolution or have in section the shape of a polygon, regular or not. One or more units may be provided per side of the polygon.
  • the sections of the two masts may be identical or, alternatively, be different but adapted so that the second mast can be inserted into the first.
  • the outer section of the second mast and the inner section of the first mast are complementary, but other shapes can be envisaged (for example one of the square-section and the other of octagonal section adapted).
  • the invention relates to an arm comprising at least a first mast having a first axis and a second mast having a second axis, mounted in the first mast substantially coaxially so as to be able to slide in the first mast, the first or the second mast being intended to be fixed on a structure, the arm further comprising at least a first and / or a second device as previously described, the first device being attached to one end of the first mast and cooperating with a contact zone located on the outer face of the second mast, the second device being attached to one end of the second mast and cooperating with a contact zone located on the inner face of the first mast.
  • the first mast may comprise a flange for fixing the first device, said flange being disposed at the corresponding end of said first mast.
  • One of the advantages of the invention is to allow rolling of the rollers on the mast substantially without play and without compressive force.
  • Aluminum production plants include one or more electrolysis rooms 1. As illustrated in figure 1 each electrolysis room 1 comprises several electrolysis cells 2 arranged in rows.
  • An electrolysis cell 2 comprises a series of anodes 3 each provided with a metal rod 4 for fixing and electrical connection to a metal anode frame (not shown).
  • the electrolysis room 1 also comprises at least one service machine 5 for carrying out operations on the cells 2 such as anode changes 3 or the removal or addition of electrolyte.
  • the service machine 5 can also be used for handling various loads, such as tank elements, liquid metal pockets or anodes.
  • the service machine 5 comprises a movable bridge 6 which rests and circulates on raceways 7a, 7b disposed parallel to each other and to the axis of the row of cells 2.
  • the movable bridge 6 can thus be moved along the electrolysis room 1.
  • the service machine 5 also comprises a service module 8 capable of being displaced on the movable bridge 6 as indicated by the double arrow of the figure 1 .
  • the service module 8 carries one or more telescopic arms 9 extending downwards towards the cells 2.
  • the arms 9 are arranged substantially vertically or inclined with respect to the vertical. For the sake of convenience and clarity, the description will be made in the case where the arms 9 are substantially vertical.
  • the arms 9 are equipped at their lower end, various organs 10 handling and response.
  • organs may in particular be a stinger (used to break the alumina layer and the solidified bath which generally covers the anodes 3 ), a scoop shovel (used to clear the location of the anode 3, after removing the anode used, by removal of solids therein), anode handling tongs 3 (used to grip and manipulate the anodes 3 by their rod 4 for the removal of spent anodes and the installation of new anodes in cell 2 ), etc.
  • a stinger used to break the alumina layer and the solidified bath which generally covers the anodes 3
  • a scoop shovel used to clear the location of the anode 3, after removing the anode used, by removal of solids therein
  • anode handling tongs 3 used to grip and manipulate the anodes 3 by their rod 4 for the removal of spent anodes and the installation of new anodes in cell 2 ), etc.
  • the telescopic arm 9, as shown in the figures 2 and 3 first comprises a fixed mast 11 made of metal, for example steel, mounted on the service module 8.
  • the fixed mast 11 is hollow and has a vertical axis 12.
  • the fixed mast 11 is here of square section, and has a length of side typically between 100 and 800 mm. Other forms are conceivable, the mast 11 may be of polygonal section or have the shape of a cylinder of revolution.
  • the square section has the advantage of allowing a very satisfactory maintenance under torsional forces.
  • the mast 11 At its lower end, the mast 11 comprises a flange 13 flat and horizontal, square section.
  • the telescopic arm 9 also comprises a movable mast 14, which may be hollow to limit the weight, axis 15, made of metal, for example steel.
  • the mobile mast 14 has an outer shape complementary to the inner shape of the fixed mast 11, in order to be placed inside the fixed mast 11 so that the axes 14, 15 are substantially merged, and in order to be able to slide axially by relative to the fixed mast 11.
  • the mobile mast 14 has a square section and has a shorter length side than the length of the side of the section of the fixed mast 11.
  • a direct orthogonal reference (x, y, z), as represented on the figure 2 , in which the axis z corresponds to the axis 12 of the fixed mast 11 and is oriented in the direction of the penetration of the mobile mast 14.
  • the z axis is upward vertical, but it could be oblique . More generally, the z axis is the reference axis in the case of the relative displacement of two masts, the reference mast can be fixed or itself mobile relative to another mast.
  • the telescopic arm 9 comprises an outer guiding device 16 fixed to the lower end of the fixed mast 11, and an inner guiding device 17 fixed to the upper end of the mobile mast 14. These two devices 16, 17 are intended to guide the sliding of the mobile mast 14 in the fixed mast 11.
  • the outer device 16 comprises a housing 18 which here has the shape of a rectangular parallelepiped of square section.
  • the housing 18 has a side wall 19 having four sides, and a bottom wall 20 and an upper wall 21 to be fixed to the flange 13 of the fixed mast 11, below it.
  • the housing 18 will be described in the position where the lower 20 and upper 21 walls are horizontal (perpendicular to the z axis).
  • the housing 18 is formed of two parts 22a, 22b identical assembled to each other in a vertical diagonal plane of the housing 18.
  • each of the parts 22a, 22b comprises, at each of its lateral ends, a tab 23 parallel to the diagonal plane of assembly of the two parts 22a, 22b.
  • the tabs 23 of the parts 22a, 22b are fixed in pairs by bolts 24, with the interposition of a shim 25 adjustment.
  • the lower walls 20 and upper 21 have both a central opening in a square shape whose side length is close to the length of the sides of the movable mast 14 is thus defined within the housing 18 a vertical housing 26, for receiving the movable mast 14, and whose transverse dimensions can be adjusted by choosing a wedge 25 of determined thickness. More generally, the housing 26 has a shape and dimensions adapted to those of the mast 14.
  • the outer device 16 further comprises several units 27 for guiding the mobile mast 14, the number of units being adapted to the biasing forces of the tool 10 carried by the mast 14.
  • the device 16 comprises two units 27 side of the side wall 19, eight units 27.
  • the unit 27 comprises a support 28 placed against the side wall 19 and fixed under the upper wall 21, for example by screws, inside the housing 18.
  • the support 28 is substantially parallelepipedic. It has a height (along z) of about a quarter of the internal height of the housing 18, between the lower walls 20 and upper 21. In addition, it extends in x (perpendicular to the side wall 19 to which it is fixed) for a sufficient distance so that its front face 29 (opposite to the side wall 19 to which the support 28 is fixed) is located slightly in front, towards the interior of the housing 26, by relative to the edge 30 of the central opening of the upper wall 21.
  • the support is made of a material adapted to friction, such as bronze, steel, cast iron, or a synthetic material such as a polyamide, and thus constitutes a shoe 31, the front face forming the bearing face 29 of the shoe 31.
  • the unit 27 also comprises a lever 32 formed of two parallel and vertical flanges 33a, 33b , extending perpendicularly to the y axis.
  • the flanges 33a, 33b are placed on either side of the shoe 31 and connected by a rod 34 oriented parallel to the y-axis, the lever 32 thus being able to pivot about the axis 35 of the rod 34.
  • the flanges 33a, 33b have a notch 60 open opposite the housing 26.
  • a plate 36 orthogonal to the x-axis, is fixed in the two notches 60, thus connecting the two flanges 33a, 33b at their lower part.
  • the plate 36 has a cross shape, viewed in the y direction, and is retained in grooves in the lower and upper sides of the notch 60.
  • the plate 36 has a substantially central through hole 36a .
  • the two flanges 33a, 33b are connected by a rod 37 of axis parallel to the y axis, held by one side by a nut 38 and the other by a holding member 39.
  • a roller 40 is rotatably mounted around the shaft pin 37, between the flanges 33a, 33b.
  • the diameter of the roller 40 is of the order of one third of the height of the housing 18.
  • the unit 27 comprises, in the lower part of the housing 18 and inside thereof, a shaft 41 of axis 42, extending along the x axis, said rod 41 being threaded at least at its ends. two extreme parts.
  • a first end portion of the threaded rod 41 cooperates with a threaded hole formed in the side wall 19 and with a nut 43 located outside the housing 18.
  • a washer 44 bearing against the head 45 of the threaded rod 41.
  • a hollow cylindrical spacer 46 of inner diameter greater than the diameter of the rod threaded.
  • the spacer 46 extends between the side wall 19 and the washer 44 and maintains between these two elements a fixed distance such that the screw 45 does not extend beyond the bearing face 29 of the shoe 31.
  • an intermediate piece 47 may be provided between the side wall 19 and the spacer 46 (see FIG. figure 6 ).
  • the plate 36 is engaged around the spacer 46, via the orifice 36a, whose diameter is substantially greater than the outer diameter of the spacer 46. Finally, a helical spring 48 is placed around the threaded rod 41 and around the spacer 46, substantially coaxially. The spring is supported on the inside of the side wall 19 of the housing 18 and on the plate 36.
  • the other units 27 are identical to what has just been described.
  • the two units 27 located on the same side of the side wall 19 are placed so that the axes 37 of the rollers 40 are substantially parallel, for example merged, the bearing face 29 of each of the pads 31 being directed towards the housing 26 and located substantially in the same vertical plane (parallel to the z axis).
  • These two units 27 are further apart from each other so as to ensure better guidance of the mobile mast 14.
  • the units 27 of two opposite sides of the side wall 19 face each other in pairs .
  • the transverse dimensions of the mobile mast 14 are determined in order to choose the wedge 25 adapted so that, once the two parts 22a, 22b of the assembled housing 18 , and the upper wall 21 of the housing 18 fixed to the collar 13 of the fixed mast 11, the rollers 40 of the units 27 roll on the mobile mast 14 without play and without compressive force.
  • the threaded rod 41 compresses the spring 48 through the plates 36, the length of the spacer 46 being chosen to create the desired prestressing force on the roller 40.
  • the unit is then in the first position, represented on the figure 7 .
  • the dotted line represents the vertical, and the line joining the pivot axis 35 of the lever 32 and the axis 37 of rotation of the roller 40 is inclined with respect to the vertical angle ⁇ 0.
  • the front portion of the roller 40 is located beyond the bearing face 29 of the shoe 31, towards the inside of the housing 26, at a distance d from said bearing face 29. In this first position, the support zone of the unit 27 on the mast 14 is formed solely by the roller.
  • the mast 14 causes, by pressing the roller 40, the pivoting of the lever 32 about the axis 3.
  • This movement causes pivoting and rearward movement of the plate 36 which thus deviates from the washer 44.
  • the pivoting of the lever stops when the front portion of the roller 40 extends substantially in the same vertical plane as the bearing face 29 of the shoe 31.
  • the unit 27 is then in the second position, represented on the figure 8 .
  • the dashed line represents the vertical, and the line joining the pivot axis 35 of the lever 32 and the axis 37 of rotation of the roller 40 is inclined relative to the vertical by an angle ⁇ , the lever having pivoted a angle ( ⁇ - ⁇ 0) with respect to the first position.
  • the bearing area of the unit 27 on the mast 14 is formed by the roller 40 and the pad 31.
  • the inner device 17 is now described with reference to Figures 9 and 10 .
  • the device 17 here has the shape of a rectangular parallelepiped whose section is a square next to the side length side of the inner section of the fixed mast 11. More generally, the shape and dimensions of the inner device 17 are adapted to those of the inner section of the fixed mast 11.
  • the device 17 comprises a frame 50 in which are arranged several guide units 27 of the fixed mast 11.
  • the frame 50 is for example mechanically welded.
  • the frame 50 comprises a lower wall 51 intended to be fixed, for example by welding, to the upper end of the mobile mast 14, above the mast 14.
  • the device 17 will be described in the position where the bottom wall 51 is horizontal.
  • the frame 50 also comprises, above the lower wall 51, a first intermediate plate 52 parallel to the bottom wall 51 and connected thereto by a side wall 53 of square section.
  • a shoe 31 made of a material adapted to friction, such as bronze, steel, cast iron, or a synthetic material such as a polyamide.
  • the shoe 31 has a bearing face 29 (opposite to the side wall to which the shoe 31 is fixed) located slightly forward, outwardly of the frame 50, relative to the casing of the frame 50.
  • the pad 31 may extend over substantially the entire length of the corresponding side.
  • the unit 27 may comprise two pads 31 located at the ends of each side of the side wall 53 .
  • the framework comprises a first stage 54 then a second intermediate plate 55, a second stage 56 and finally an upper wall 57.
  • the first stage 54 has two vertical side plates 58a, 58b oriented here perpendicularly to the x axis
  • the second stage 56 has two vertical side plates 59a, 59b oriented perpendicular to the side plates 58a, 58b of the first stage 54, here perpendicular to the y axis.
  • the guiding units 27 of the inner device 17 are identical to each other and similar to those of the external device 16, with the difference that the support 28 does not form the pad; the shoe 31 being disposed as indicated above in the lower part of the device 17.
  • the front face of the support 28 is set back from the envelope of the frame 50 so as not to come into contact with the mast 11.
  • the first stage 54 comprises four units 27, divided into two sets.
  • the two units 27 of an assembly are arranged so that the axes 37 of the rollers 40 are substantially parallel, for example merged, and orthogonal to the side plates 58a, 58b, the front faces of the supports 28 being directed towards the outside, these units 27 being further apart from each other so as to allow better guidance.
  • the front face of a support 28 of a unit 27 of a set and the front face of a support 28 of a unit 27 of the other set are directed opposite one of the other.
  • the supports 28 of the units 27 of one set are located under the axis 37 of the rollers 40, while the supports 28 of the units 27 of the other set are located above the axis 37 of the rollers 40, that is to say, arranged head to tail, to limit clutter.
  • the second stage 56 also comprises four units 27, divided into two sets, in a manner similar to that described for the first stage 54.
  • the axes 37 of the rollers 40 of the units of the second stage 56 are orthogonal to the axes 37 rollers 40 of the first stage units 54.
  • the number of units 27 of the inner device 17 and their distribution may be different, depending on the efforts to be expected.
  • the inner device 17 is fixed, typically by welding, to the upper end of the mobile mast 14 before the introduction of the mobile mast 14 into the fixed mast 11.
  • shims here not shown
  • the wedge allows adjustment of the transverse spacing (i.e., perpendicular to the first axis) to compensate for imperfections in the inner surface of the first mast.
  • the axis 37 of the roller 40 can be moved between the first and the second position according to the forces exerted by the fixed mast 11, the bearing zone of the unit 27 being respectively formed by the roller 40 only, or by the roller 40 and the pad 31.
  • More than two masts can thus be assembled to each other to form the telescopic arm 9.
  • the number of mobile masts is 1, 2 or 3 for applications in the field of aluminum production by electrolysis.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Transmission Devices (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Claims (22)

  1. Führungsvorrichtung für einen ersten Mast (11), welcher eine erste Achse (12) aufweist, gegenüber einem zweiten Mast (14), welcher eine zweite Achse (15) aufweist, wobei der zweite Mast (14) im Wesentlichen koaxial in den ersten Mast (11) montiert wird, um in ihm gleiten zu können, wobei die Führungsvorrichtung (16, 17) an einem Ende des erstes Mastes (11) oder des zweiten Mastes (14) befestigt wird und mit einer auf der Außenseite des zweites Mastes (14) bzw. auf der Innenseite des ersten Mastes (11) liegenden Berührungsfläche zusammenwirken soll und mindestens eine Führungseinheit (27) umfasst, die dazu ausgebildet ist, mit einer Berührungsfläche des zweiten Mastes (14) bzw. des ersten Mastes (11) zusammenzuwirken, wobei die Einheit (27) eine Schubrichtung im Wesentlichen orthogonal zur Berührungsfläche aufweist, mit welcher sie zusammenwirken soll, und wobei die Einheit (27) eine Rolle (40) umfasst, die um eine zur Schubrichtung im Wesentlichen orthogonale Achse (37) drehbar gelagert ist, wobei die Führungsvorrichtung (16, 17) so montiert wird, dass die Achse (37) der Rolle (40) im Wesentlichen orthogonal zur ersten Achse verläuft, dadurch gekennzeichnet, dass die Einheit (27) zusätzlich umfasst:
    - eine Fußplatte (31) mit einer zur Schubrichtung im Wesentlichen orthogonalen Abstützfläche (29),
    - Mittel zur Verschiebung der Achse (37) der Rolle (40) gegenüber der Fußplatte (31) im Wesentlichen parallel zur Schubrichtung je nach den Kräften, die vom Mast (11, 14) auf die Rolle (40) ausgeübt werden, zwischen einer ersten Position, in der sich die Rolle (40) über die Abstützfläche (29) der Fußplatte (31) hinaus erstreckt, wobei der Bereich zur Abstützung der Einheit (27) an dem Mast (11, 14) nur von einem Teil der Rolle (40) gebildet wird, und einer zweiten Position, in der sich die Rolle (40) nicht über die Abstützfläche (29) der Fußplatte (31) hinaus erstreckt, wobei der Bereich zur Abstützung der Einheit (27) an dem Mast (11, 14) von einem Teil der Rolle (40) und von der Fußplatte (31) gebildet wird.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass sie elastische Rückstellmittel (48) umfasst, die geeignet sind, eine Kraft im Wesentlichen parallel zur Schubrichtung auszuüben, wobei die elastischen Rückstellmittel (48) so angeordnet sind, dass sie, wenn sich die Achse (37) der Rolle (40) in der ersten Position befindet, komprimiert werden können, um die Verschiebung der Achse (37) der Rolle (40) in Richtung auf die zweite Position zu gestatten.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass sie Vorkomprimierungsmittel (41, 44, 45, 46) umfasst, die dazu ausgebildet sind, die elastischen Rückstellmittel (48) zu komprimieren und dadurch die Achse (37) der Rolle (40) nach vorne zu belasten, wenn sich die Achse (37) der Rolle (40) in der ersten Position befindet.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Achse (37) der Rolle (40) fest mit einem Hebel (32) verbunden ist, welcher schwenkbar um eine gegenüber der Fußplatte (31) feststehend ausgebildete und zur Achse (37) der Rolle (40) parallel verlaufende Achse (35) gelagert ist.
  5. Vorrichtung nach den Ansprüchen 2 und 4, dadurch gekennzeichnet, dass sich ein Teil der elastischen Rückstellmittel (48) an einem Bereich des Hebels (32) abstützt, wobei die Achse (37) der Rolle (40) zwischen der Schwenkachse (35) des Hebels (32) und diesem Bereich des Hebels (32) gelegen ist.
  6. Vorrichtung nach den Ansprüchen 2 bis 4, dadurch gekennzeichnet, dass sich ein Teil der elastischen Rückstellmittel (48) an einem Bereich des Hebels (32) abstützt, wobei dieser Bereich des Hebels (32) zwischen der Schwenkachse (35) des Hebels (32) und der Achse (37) der Rolle (40) gelegen ist.
  7. Vorrichtung nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, dass der Hebel (32) von zwei im Wesentlichen parallelen, zur Achse (37) der Rolle (40) orthogonalen Flanschen (33a, 33b) gebildet ist, wobei die Rolle (40) zwischen den beiden Flanschen (33a, 33b) angeordnet ist, und dass die Flansche (33a, 33b) einerseits an einem ihrer Enden beiderseits eines gegenüber der Fußplatte (31) feststehenden Trägers (28) angeordnet und über eine den Träger (28) durchquerende Stange (34) verbunden sind, und andererseits an ihrem anderen Ende über eine Platte (36) verbunden sind, an der sich die elastischen Rückstellmittel (48) abstützen.
  8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass der Träger (28) die Fußplatte (31) bildet.
  9. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die Fußplatte (31) von dem Träger (28) getrennt ausgebildet ist.
  10. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass sie umfasst:
    - eine Feder (48) mit einer zur Schubrichtung im Wesentlichen parallelen Achse (37), wobei sich die Feder (48) an einem ersten Ende an einer mit der Fußplatte (31) fest verbundenen, im Wesentlichen quer zur Schubrichtung hinter der Achse (37) der Rolle (40) angeordneten Wand (19, 47) und an einem zweiten Ende an einem mit der Achse der Rolle (40) fest verbundenen Abstützteil (36) abstützt;
    - Blockiermittel (41, 44, 45, 46), welche gegenüber der Fußplatte (31) feststehend ausgebildet und dazu ausgestaltet sind, die Verschiebung des Teils (36) nach vorne zu verhindern und die Verschiebung des Teils (36) nach hinten zu gestatten.
  11. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass die Blockiermittel eine im Innern der Feder (48), im Wesentlichen koaxial dazu angeordnete Gewindestange (41) umfassen, wobei die Gewindestange (41) ein erstes äußeres Ende aufweist, das mit einer Gewindebohrung in der Wand (19) zusammenwirkt, an der sich das erste Ende der Feder (48) abstützt, sowie ein zweites äußeres Ende aufweist, das an einem Querblockierelement (44) befestigt ist, und dass das Abstützteil (36) eine Durchgangsbohrung (36a) aufweist, damit es um die Gewindestange (41) herum eingesetzt werden und sich unter der Wirkung der Feder (48) an dem Querblockierelement (44) abstützen kann, wenn sich die Achse (37) der Rolle (40) in der ersten Position befindet.
  12. Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, dass sie ein hohl ausgebildetes, zylindrisches Teil als Distanzstück (46) umfasst, das koaxial um die Gewindestange (41) herum im Innern der Feder (48) montiert ist, zwischen der Wand (19), an der sich das erste Ende der Feder (48) abstützt, und dem Querblockierelement (44).
  13. Vorrichtung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass sie an einem Ende des ersten Mastes (11) befestigt wird und mit einer auf der Außenseite des zweiten Mastes (14) liegenden Berührungsfläche zusammenwirken soll, wobei die Vorrichtung (16) eine Aufnahme (26) für den zweiten Mast (14) und eine Anzahl N1 von Führungseinheiten (27) umfasst, die im Wesentlichen auf den Seiten eines fiktiven Polygons in der Nähe seiner Ecken angeordnet sind, wobei die Abstützflächen der Fußplatten (31) der Einheiten (27) zu der Aufnahme (26) hin gerichtet sind.
  14. Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, dass N1 zwischen 1 und einschließlich 20 liegt.
  15. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass sie ein Gehäuse (18) umfasst, in dem die Führungseinheiten (27) untergebracht sind und in dem die Aufnahme (26) vorgesehen ist, wobei das Gehäuse (18) aus mindestens zwei Teilen (22a, 22b) gefertigt ist, die um den zweiten Mast (14) herum zusammengesetzt werden.
  16. Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, dass sie Einstellmittel (25) zur Einstellung des Abstands zwischen den Teilen (22a, 22b) des Gehäuses (18) umfasst, um die Querabmessungen der Aufnahme (26) je nach den Querabmessungen des zweiten Mastes (14) einzustellen.
  17. Vorrichtung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass sie an einem Ende des zweiten Mastes (14) befestigt wird und mit einer auf der Innenseite des ersten Mastes (11) liegenden Berührungsfläche zusammenwirken soll, wobei die Vorrichtung (17) eine der Innenform der ersten Mastes (11) angepasste Außenform aufweist und eine Anzahl N2 von Führungseinheiten (27) umfasst, die im Wesentlichen auf den Seiten eines Polygons in der Nähe seiner Ecken angeordnet sind, wobei die Abstützflächen der Fußplatten (31) der Einheiten (27) zur Außenseite der Vorrichtung (17) hin gerichtet sind.
  18. Vorrichtung nach Anspruch 17, dadurch gekennzeichnet, dass N2 zwischen 1 und einschließlich 20 liegt.
  19. Vorrichtung nach Anspruch 18, dadurch gekennzeichnet, dass sie ein Gerüst (50) umfasst, auf dem die Führungseinheiten (27) angeordnet sind, wobei das Gerüst (50) mindestens eine erste und eine zweite Etage (54, 56) umfasst, wobei jede Etage mindestens zwei Einheiten (27) umfasst, bei denen die Abstützflächen (29) der Fußplatten (31) zueinander entgegengesetzt gerichtet sind, wobei die Schubrichtung der Einheiten (27) der ersten Etage (54) orthogonal zur Schubrichtung der Einheiten (27) der zweiten Etage (56) verläuft.
  20. Teleskoparm umfassend mindestens einen ersten Mast (11), welcher eine erste Achse (12) aufweist, und einen zweiten Mast (14), welcher eine zweite Achse (15) aufweist und im Wesentlichen koaxial im ersten Mast (11) montiert ist, um im ersten Mast (11) gleiten zu können, wobei der erste oder der zweite Mast (11, 14) an einer Struktur (8) befestigt wird, dadurch gekennzeichnet, dass er mindestens eine erste und/oder eine zweite Vorrichtung (16, 17) nach einem der Ansprüche 1 bis 19 aufweist, wobei die erste Vorrichtung (16) an einem Ende des ersten Mastes (11) befestigt ist und mit einer auf der Außenseite des zweiten Mastes (14) liegenden Berührungsfläche zusammenwirkt, die zweite Vorrichtung (17) an einem Ende des zweiten Mastes (14) befestigt ist und mit einer auf der Innenseite des ersten Mastes (11) liegenden Berührungsfläche zusammenwirkt.
  21. Teleskoparm nach Anspruch 20, dadurch gekennzeichnet, dass der erste Mast (11) einen Flansch (13) zur Befestigung der ersten Vorrichtung (16) aufweist, wobei der Flansch (13) an dem entsprechenden Ende des ersten Mastes (11) angeordnet ist.
  22. Führungsverfahren zur Führung eines erstes Mastes (11), welcher eine erste Achse (12) aufweist, gegenüber einem zweiten Mast (14), welcher eine zweite Achse (15) aufweist, wobei der zweite Mast (14) im Wesentlichen koaxial in den ersten Mast (11) montiert wird, um in ihm gleiten zu können, dadurch gekennzeichnet, dass es folgende Schritte aufweist:
    - Bereitstellen mindestens einer Führungsvorrichtung (16, 17) nach einem der Ansprüche 1 bis 19;
    - Befestigen der Führungsvorrichtung (16, 17) an einem Ende des ersten Mastes (11) bzw. des zweiten Mastes (14);
    - Einführen des zweiten Mastes (14) in den ersten Mast (11), wobei die Vorrichtung (16, 17) dazu ausgebildet ist, dass die Rollen (40) an der Außenseite des zweiten Mastes (14) bzw. an der Innenseite des ersten Mastes (11) entlang rollen;
    - Einwirken auf die Vorrichtung (16, 17), um die Achse (37) der Rolle in die erste Position zu bringen.
EP06755492A 2005-05-19 2006-05-17 Führungsvorrichtung für ineinander gleitende masten, teleskoparme und führungsverfahren Active EP1910211B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0505022A FR2885894B1 (fr) 2005-05-19 2005-05-19 Dispositif de guidage de mats coulissant l'un dans l'autre, bras telescopique et procede de guidage
PCT/FR2006/001106 WO2006123052A1 (fr) 2005-05-19 2006-05-17 Dispositif de guidage de mats coulissant l'un dans l'autre, bras telescopique et procede de guidage

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EP1910211A1 EP1910211A1 (de) 2008-04-16
EP1910211B1 true EP1910211B1 (de) 2008-11-05

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US (1) US7779580B2 (de)
EP (1) EP1910211B1 (de)
CN (1) CN100558623C (de)
AR (1) AR053389A1 (de)
AT (1) ATE413359T1 (de)
AU (1) AU2006248816B2 (de)
BR (1) BRPI0610073A2 (de)
CA (1) CA2608462C (de)
DE (1) DE602006003565D1 (de)
FR (1) FR2885894B1 (de)
MY (1) MY144989A (de)
NO (1) NO332542B1 (de)
RU (1) RU2401794C2 (de)
WO (1) WO2006123052A1 (de)
ZA (1) ZA200710501B (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2885894B1 (fr) * 2005-05-19 2007-06-22 Ecl Soc Par Actions Simplifiee Dispositif de guidage de mats coulissant l'un dans l'autre, bras telescopique et procede de guidage
FR2913985B1 (fr) * 2007-03-23 2009-08-28 Ecl Soc Par Actions Simplifiee Module de service muni d'au moins une pince a anode et d'un moyen permettant d'exercer une force ou un choc sur la tige d'anode.
FI125422B (fi) * 2013-12-12 2015-10-15 Konecranes Oyj Järjestely kuormauselimen heilahduksen vaimentamiseksi nosturissa
JP7107053B2 (ja) * 2018-07-19 2022-07-27 大同特殊鋼株式会社 昇降装置のガイド機構
WO2023283587A1 (en) * 2021-07-09 2023-01-12 Lam Research Corporation Compliant guiding mechanism for mechanical actuator

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CN100558623C (zh) 2009-11-11
CA2608462C (fr) 2013-12-10
NO332542B1 (no) 2012-10-15
RU2007147221A (ru) 2009-06-27
EP1910211A1 (de) 2008-04-16
US7779580B2 (en) 2010-08-24
RU2401794C2 (ru) 2010-10-20
WO2006123052A1 (fr) 2006-11-23
CA2608462A1 (fr) 2006-11-23
ZA200710501B (en) 2009-04-29
CN101223098A (zh) 2008-07-16
ATE413359T1 (de) 2008-11-15
AR053389A1 (es) 2007-05-02
US20080203047A1 (en) 2008-08-28
FR2885894B1 (fr) 2007-06-22
FR2885894A1 (fr) 2006-11-24
BRPI0610073A2 (pt) 2010-05-25
NO20076535L (no) 2008-01-30
MY144989A (en) 2011-12-15
DE602006003565D1 (de) 2008-12-18
AU2006248816A1 (en) 2006-11-23
AU2006248816B2 (en) 2011-06-30

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